From: peterjeremy@optushome.com.au (Peter Jeremy)
Subject: [Unix-jun72] last1120 C compiler added to svn
Date: Mon, 5 May 2008 19:10:11 +1000 [thread overview]
Message-ID: <20080505091011.GL7293@server.vk2pj.dyndns.org> (raw)
In-Reply-To: <20080505045229.GA76763@minnie.tuhs.org>
On Mon, May 05, 2008 at 02:52:29PM +1000, Warren Toomey wrote:
> i= *c & 0277;
^^^^ 0377 maybe
>But it's very sloooow. I wonder why; V7 on simh is much faster than V1.
Is V1 executing more instructions to get the same thing done or is simh
managing to execute V7 instruction streams (or maybe emulate higher-end
PDP-11's) better? Judging by some of the earlier hardware comments,
maybe V1 is thrashing.
--
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.
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next prev parent reply other threads:[~2008-05-05 9:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-05 4:52 Warren Toomey
2008-05-05 9:10 ` Peter Jeremy [this message]
2008-05-05 11:36 ` [Unix-jun72] Why is V1 so slow? Warren Toomey
2008-05-05 11:44 ` Warren Toomey
2008-05-07 10:19 ` P.A.Osborne
2008-05-07 11:14 ` Warren Toomey
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